{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{11}{c}}
\toprule
                                &\multicolumn{5}{c}{\shortstack{Abatement capital costs (\$1000s)}}                                           &\multicolumn{6}{c}{\shortstack{Boiler house input costs (\$1000s)}}                                                                \\\cmidrule(lr){2-6}\cmidrule(lr){7-12}
&\multicolumn{1}{c}{All} &\multicolumn{1}{c}{Cyclone} &\multicolumn{1}{c}{Bag} &\multicolumn{1}{c}{Scrubber} &\multicolumn{1}{c}{ESP} &\multicolumn{1}{c}{Total} &\multicolumn{1}{c}{Capital} &\multicolumn{1}{c}{Labor} &\multicolumn{1}{c}{Electricity} &\multicolumn{1}{c}{Fuel}  &\multicolumn{1}{c}{Materials} \\
&\multicolumn{1}{c}{(1)} &\multicolumn{1}{c}{(2)} &\multicolumn{1}{c}{(3)} &\multicolumn{1}{c}{(4)} &\multicolumn{1}{c}{(5)} &\multicolumn{1}{c}{(6)} &\multicolumn{1}{c}{(7)} &\multicolumn{1}{c}{(8)} &\multicolumn{1}{c}{(9)} &\multicolumn{1}{c}{(10)}  &\multicolumn{1}{c}{(11)} \\
\midrule \addlinespace
ETS Treatment (=1)              &      -3.467         &       0.602\sym{**} &       0.530\sym{*}  &      -0.222         &      -4.281         &       11.26         &      -7.178         &       1.561         &       25.21\sym{*}  &       26.87\sym{*}  &      -0.142         \\
                                &     (3.089)         &     (0.266)         &     (0.318)         &     (0.407)         &     (3.344)         &     (26.31)         &     (19.05)         &     (3.332)         &     (13.53)         &     (15.35)         &     (0.596)         \\
\addlinespace \addlinespace
R\textsuperscript{2}            &        0.90         &        0.85         &        0.83         &        0.84         &        0.89         &        0.93         &        0.63         &        0.05         &        0.65         &        0.98         &        0.19         \\
Control mean                    &       44.04         &        7.80         &        9.85         &        9.69         &       16.70         &      578.48         &      190.88         &       47.86         &      162.13         &      299.50         &        4.33         \\
Plants                          &         276         &         276         &         276         &         276         &         276         &         185         &         218         &         262         &         247         &         225         &         283         \\
\bottomrule
\end{tabular}
}
